Hello folks! I have a question with regards to clues - certain other frameworks, most notably Spock and Hamcrest, when an assertion fails they show the data under test that failed, by default. Is there any way to do this in Kotest without having to wrap everything in clues?

Isn't this already the case by default? Do you have an example of a test that doesn't behave like this?

test("test list contains all elements"){
            val strings = listOf("One", "two", "three")
            strings.shouldContainAll("One", "two", "three","four")
        }

gives me Collection should contain all of ["One", "two", "three", "four"] but was missing ["four"]

Well, you're asking Kotest to check that these elements are in the list, you did not say you don't want any other elements

that's not quite what I want though 🙂 I want feedback on what is there, irrespective of the matcher.

If you use

assertSoftly

it creates the clue automatically IIRC

you mean like so?

assertSoftly(strings){
                shouldContainAll("One", "two", "three","four")
            }

Yes, I think this prints the entire list? I'm not 100% sure

trying it out..

Ah, it could probably be a feature request to have

assertSoftly

imply

withClue

yeah probably.even with

asClue

the output is nowhere near as nice by default as with the

shouldContainExactly

[One, two, three, five]
java.lang.AssertionError: [One, two, three, five]

I created an issue for it, please upvote 🙂 https://github.com/kotest/kotest/issues/3418